Road-drag.



F. P. MARTIN.

ROAD DRAG- APPLICATION FILED FEB- 19, 1914. r 1,217,475. Patented Feb. 27, 1917.

Attorneys FRANK 1?. MARTIN, WILLIAMSBURG, KANSAS ROAD-DRAG.

1 217,475. Specification of Letters Patent. Patentdjfeb 2 .7, 191% Application filed February 19, 1914. Serial No. 819,799; v

To all whom it may concern:

Be it known that I, FRANK P. MARTIN, a citizen of the United States, residing at Williamsburg, in the county of Franklin and State of Kansas, have invented a new and useful Road-Drag, of which the following is a specification.

This invention relates to an improved road drag and grader.

An object of the present invention is to provide a road drag and grader of novel construction and having adjustable front and rear scraping blades, and unique means for holding them in various adjusted positions.

With the foregoing and other objectsjin view which will appear as the description proceeds, the invention resides in the combi nation and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that the scope of what is claimed, without de-.

parting from the spirit of the inventlon.

In the drawings accompanying this specification and forming a part thereof, the preferred embodiment of my invention has been illustrated, in which Figure l is a top plan view of my improved road rader.

Fig. 2 is a i -ront view in elevation thereof.

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, a frame is provided and includes the top plate 4 to which are rigidly secured the cross beams 5, the latter being twisted as at G and bent downward to form the arms 7.

The front scraping blade 8 is provided with the angle shelf 9 secured thereto and extending therealong and to the upper outlying fiange 10 of which are rigidly secured the upstanding brackets 11. A pivot bolt 12 extends between the upstanding brackets 11 and the arms 7 which are embraced therebetween. The scraping blade is thus mounted for rotation about the pivot bolt 12 so that the angle at which the blade extends to the ground may be varied to suit the vary ing conditions of the road which is to be scraped. In order to rigidly hold the scraping blade 8 in adjusted angular position, the outstanding arm 13 is provided rigidly secured to the said blade and to the upper extremityof which is fastened the chain 14. An upstanding notched bracket 15 is rigidly secured to and carried by the top plate 4 and into the notched portion of which the chain 14 is adapted to extend, thus preventingthe outward movement of the arm 13 and holding the blade rigidly in its angular position.

The rear scraping blade 16 is provided with the angle member 17' and upstanding bracket 18 similar to the front scraping blade and is pivotally secured to the rear arm 7 Projecting rearwardly from the frame is the chain guiding member 19 which carries the pin 20, over which latter extends the chain 21. The chain 21 is rigidly secured at one extremity to the upwardly extending arm 22 of the rear blade, from which point it extends around the pin 20, projects above the top plate 4, and engages the notched portion 23- of theups tanding bracket 24. Thus the rear scraping blade may also be adjustably held at inclined positions and at the same time may easily and quickly be moved to a new position.

A pair of strut bars 25 extend between the forward extremities of the cross beams 5 and are rigidly secured thereto and to the rear extremity of the center cross beam, thus strengthening the entire frame and providing a rigid structure capable of withstanding the hard usage towhich it will be normally subjected. A suitable traction member is provided in the nature of a chain secured to the end cross beams 5 and to which a tractive effort is applied, and it will be noted from a reference to Fig. 3, thatthe force exerted upon the scraping blades due to the dragging of the scraper over the ground, will be in a direction resisted by the flexible chains 14 and 21. Inasmuch as there will be no force tending to rotate the blades in an opposite direction, it is unnecessary to lock the blades against rotation in both directions.

Having thus fully described my invention, what I claim is A drag comprising a frame embodying parallel arches and a cross plate secured upon their upper portions, said arches being formed from bars and having their upper portions disposed in a horizontal plane, the bends of the arches being twisted so that the limbs are disposed in vertical planes longitudinal of the arches, front and rear scraper blades in front of the respective sets of the limbs of the arches and having rearwardly projecting portions pivoted to said limbs Whereby the lower portions of the blades can swing rearwardly, the upper portions of the blades being adapted to swing against the limbs When the biades are brought into Vertical planes, each blade being provided between its ends with upwardly projecting arm chains attached to the upper ends or said arms, notched ta e up members carried by said piate for the engagement of the links of the chains, and'a.

rearwardly projecting bracket carried by the frame and having a guide at its free end over which the chain of the rear blade is passed said guide being disposed in rear of the rear blade.

In testimony that I' claim the foregoing as my own I have hereto afiiXed my signature in the presence of tWo Witnesses.

I FRANK P. MARTIN.

Witnesses: V

' JOHN CLAYPOOL,

C. B. SWIFT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

